(0 18 16 14 4)(1 20 12 7 3)(2 6 5)(8 11 9)(10 15 13)(17 21 19)
ALLOWS (11/8)-SEQUENCE
1: (0 2 6)

(0 5 2 18 16 14 4)(1 20 12 7 3)(6)(8 11 9)(10 15 13)(17 21 19)
2: (1 20 3)

(0 5 2 18 16 14 4)(1)(3 12 7)(6)(8 11 9)(10 15 13)(17 21 19)(20)
3: (2 18 4)

(0 5 2)(1)(3 12 7)(4 16 14)(6)(8 11 9)(10 15 13)(17 21 19)(18)(20)
4: (17 21 19)

(0 5 2)(1)(3 12 7)(4 16 14)(6)(8 11 9)(10 15 13)(17)(18)(19)(20)(21)